Vehicle-hub



J. P, CHAMBERS.

Vehicle-Hub; No. 226,277. A Patented April 6,1880.

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lJNrrED STATES ATENT FFICE.

JAMES P. CHAMBERS, OF BLQOMINGTON, INDIANA.

VEHICLE-HUB.

SPECIFICATION forming part of Letters Patent-No. 226,277, dated April 6,1880.

Application filed February 18, 1880.

To all whom it may concern:

Be it known that I, 'JAMns P. CHAMBERS, of Bloomington, in the county ofMonroe and State of Indiana, have invented certain new and usefulImprovements in Vehicle-Hubs; and I do hereby declare that the followingis a full, clear, and exact description thereof, reference being had tothe accompanying drawings, and to the letters of reference markedthereon, which form part of this specification, in which- Figure l is avertical longitudinal section of the hub and its parts, and Fig. 2 across section of the divided screw-box.

The objects I have sought to accomplish in the peculiar construction ofmy hub are, first, an increased strength and capability of resistance tothe lateral strain to which the lower portions of the spokes aresubjected; secondly, lessening the friction upon the axlearm; thirdly,providing a ready means for the compensation of wear; and, fourthly, soinclosing the arm as to better enable the lubrieating substance to beretained, and at the same time to prevent as far as possible theadmission or accumulation of dust and dirt around it.

To these ends, therefore, my invention consists in the combination ofthe two metal caps referred to above with a divided screw-box andaxle-arm, and in the combination of these with such other devices aswill be hereinafter fully set forth and claimed.

To enable others skilled in the art to make and use my invention, I willnow fully describe its construction and operation.

A represents a wooden wheel with parallel sides, which constitutes thehub proper, and in which are inserted the spokes I) b in the usualmanner.

B B are metal caps with circular flanges, which fit snugly over eachside of the hub and against a central circumferential elevation aroundthe hub. The cap B is cast or formed with the tubular tongue to, whichshould be ofsufficientlength to extend not only through the hub,'asshown in the drawings, but also far enough beyond asuitable hole in capB to admit of the screw 0 entering it. This tongue is provided on itsinner surface, near its outer end, with a thread-screw, which may eitherbe cut in the tongue itself and the rest of its inner surface on bothsides of the screw made a little larger in circumference, ora short tubepreviously cut with an internal screw may be soldered in the tongue,thus leaving a space on each side thereof.

0 represents a divided screw-pipe box, with sufficient screw-surface toadmit of it extending almost to the inner end of the tongue, while itshead projects a little beyond the open end of the tongue. The two partsforming the divided screw-box are stepped between its head andscrew-surface, in order that it may fit loosely against the shoulderformed in tongue at. The head of box 0 should, of course,

be so formed as to enable it to be easily operated or turned by means ofa wrench, and its opposite end is to be rounded or reamed out to allowthe enlarged and rounded end of the arm to fit therein, as seen inFig. 1. Each part of the box is troughed out, so that when they arebrought together a circular flange will be formed near their outer end,and a diminished bore for the neck of the axle-arm to fit in at theiropposite end, while at the same time a lubricating-chamber, g, will beformed, which slopes into the neck-chamber, thus furnishing bearings forthe arm only at its outer and inner ends, as fully shown.

D represents the axle, with its arm provided with the enlargements h hand neck 10.

It will be observed very readily that when any wear occurs it will beeasily compensated by simply tightening the screw pipeboxagainst theenlargements h h and to provide for this contingency I employ the washer2', which is to be removed when it becomes necessary to take up thewear. The hub A may, of course, be constructed of either wood or iron,and the caps madeto screw on or be bolted through the hub, as desired.

The operation of oiling is as follows: After removing the wheel, whichis done by grasping the head of the pipe-box with a wrench and revolvingthe wheel backward until it is unscrewed from the box, I then remove thewasher and take one side of the boxing off, but hold the other sideunder the axle-arm.

I now pour in the oil, replace the other half of 100 the box, slip thewasher on, and, after properly adjusting the wheel, turn it until theboxing is tight, and then finally tighten the setscrew.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a hub for vehicle-wheels, the combination of cap B, formed orprovided with tubular tongue a, with divided screw-box 0, both beingconstructed and arranged to take up or compensate for the'wear ofaxle-arm, substantially in the manner set forth.

2. In ahub for vehicle-Wheels, the combination of metal caps B B, bothconstructed as described, with divided screw-box O and axlearm havingenlargements 76 h at each end thereof, all arranged substantially as andfor the purpose set forth.

